Presented by: SIF3: Providers Joerg Huber SIF3 Providers: Source of Truth

© Systemic Pty Ltd September 2014 Training Course - Sydney: SIF3: Providers 2 Overview  What is an Object Provider?  What is it responsible for?  Source of Truth  DIRECT vs. Brokered Object Provider  Object Providers and SIF3 Frameworks  Basic steps to develop an Object Provider

© Systemic Pty Ltd September 2014 Training Course - Sydney: SIF3: Providers 3 What is an Object Provider  A ‘Server’ in the traditional sense.  Will require web- or application server  Can be very simple (Brokered) or may have some complexity (DIRECT)  It typically responds to CRUD requests: Create, Read/Get, Update & Delete Objects (i.e. Students)  It can publish Events if events are required.  An Object Provider is considered the “source of truth”, meaning CRUD requests might be rejected by the provider!

© Systemic Pty Ltd September 2014 Training Course - Sydney: SIF3: Providers 4 Responsibility of an (Object) Provider  Respond to CRUD requests from consumers.  Maintain RefIDs! Allocate for ‘Create’ request. Accept from ‘Create’ requests (mustUseAdvisory) Ensure they are syntactically valid  DIRECT Environment An Object Provider is also an Environment Provider Provide an environment connector and maintain environments. Manage consumer sessions  Events (most likely in a brokered environment only) Send appropriate events if the data store the provider is responsible for is altered.

© Systemic Pty Ltd September 2014 Training Course - Sydney: SIF3: Providers 5 Source of Truth An Object Provider is consider the Source of Truth for all data objects it provides.  Consumers can request changes but Object Provider may reject them. Ensure that consumers deal with rejected requests.  Object Provider is responsible to maintain RefIDs  Brokered Environment: Events Responsible to publish events if data store is altered. Keeps consumers in sync with “Source of Truth”  DIRECT Environment: Events Most likely not supported. SIF Specification does not require a DIRECT environment to support events. Consumer may need to sync all data from time to time to stay in tune with the “Source of Truth”.

© Systemic Pty Ltd September 2014 Training Course - Sydney: SIF3: Providers 6 DIRECT vs. Brokered Provider DirectBrokered Object ProviderYes Environment ProviderYesNo Maintain Sessions for ConsumersYesNo Events supportedOptional 1) Yes Delayed Request/Response supportedOptional 1) N/A 2) RefID Management (Object Provider)Yes Source of TruthYes 1) If required then Queue Connector, Queue Management, Event Connector, message routing, consumer connection management must be implemented. Lot’s of work! 2) Does not see if request is DELAYED. Broker will maintain this state! Object Provider only deals with Immediate Request/Response.

© Systemic Pty Ltd September 2014 Training Course - Sydney: SIF3: Providers 7 Providers & SIF3 Frameworks Java.Net Object Provider Framework - CRUDYes Acts as DIRECT Environment ProviderYes Brokered Connections supportedYesNo 1) Events supportedYesNo 1) Delayed Request/Response supportedNo 1) Service Path SupportNo 1) 1) Future extensions expected

© Systemic Pty Ltd September 2014 Training Course - Sydney: SIF3: Providers 8 Steps developing an Object Provider  Chose a Data Model (i.e. SIF AU 1.3)  Chose the SIF Objects the Provider deals with.  DIRECT Environment Manage Environments (next exercise) What do I need to tell consumers (i.e. Application Key, Password, Base URI etc.).  Brokered Environment? What is the Base URI to the Broker? What is my Application Key, Password? Event support required  Finally… Implement Object Providers => Next Session… Exercise